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Finding the Fourth Proportional to 218,221.14, 327,331.64 and 60,449.60

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Solution

The fourth proportional to 218,221.14, 327,331.64 and 60,449.60 is: 90,674.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,221.14 : 327,331.64 = 60,449.60 : x
  2. Step 2: Convert to fraction form
    218,221.14/327,331.64 = 60,449.60/x
  3. Step 3: Cross multiply
    218,221.14x = 327,331.64 × 60,449.60
  4. Step 4: Simplify right side
    218,221.14x = 19,787,066,705.34
  5. Step 5: Solve for x
    x = 19,787,066,705.34/218,221.14
  6. Step 6: Final answer
    x = 90,674.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.